package user;
import book.Book;
import book.Library;
import utils.ScannerSingleton;

import java.time.LocalDate;
import java.util.Scanner;


/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 刘国水
 * Date: 2025-03-30
 * Time: 17:41
 */
public class AdminUser extends User{

//    public Scanner scanner = new Scanner(System.in);
    public Scanner scanner ;

    public Library library;

    public AdminUser(String name,int userID) {
        super(name,userID,"管理员");
        scanner = ScannerSingleton.getInstance();
        library = Library.getLibrary();
    }


    @Override
    public int display() {
        System.out.println("管理员 " + this.getName() + " 的操作菜单:");
        System.out.println("1. 查找图书");
        System.out.println("2. 打印所有的图书");
        System.out.println("3. 退出系统");
        System.out.println("4. 上架图书");
        System.out.println("5. 修改图书");
        System.out.println("6. 下架图书");
        System.out.println("7. 统计借阅次数");
        System.out.println("8. 查看最后欢迎的前K本书");
        System.out.println("9. 查看库存状态");
        System.out.println("10. 检查超过⼀年未下架的图书");
        System.out.println("请选择你的操作：");
        return scanner.nextInt();
    }

    //其他操作⽅法
    //上架图书
    public void addBook() {
        System.out.println("Admin的方法执行了");
        scanner.nextLine();
        System.out.println("请输⼊书名：");
        String title = scanner.nextLine(); // 输⼊书名
        System.out.println("请输⼊作者：");
        String author = scanner.nextLine(); // 输⼊作者
        System.out.println("请输⼊类别：");
        String category = scanner.nextLine(); // 输⼊图书类别
        System.out.println("请输⼊出版年份：");
        int year = scanner.nextInt(); // 输⼊出版年份
        scanner.nextLine(); // 吞掉换⾏符
        LocalDate shelfDate = LocalDate.now(); // 当前时间作为上架时间
        Book book = new Book(title, author, category, year, shelfDate);
        // 创建新书对象
       //调⽤图书类 添加图书
       library.addBook(book);

    }

    //图书修改 ⽀持修改书名 作者 类别
    public void updateBook() {
        //1. 先展⽰⼀下⽬前的所有书籍
        library.displayBooks();
        System.out.println("请输⼊要修改的图书id：");
        int bookId = scanner.nextInt();
// 吞掉换⾏符
        scanner.nextLine();
// 获取对应的图书
        Book book = library.searchById(bookId);
        if(book == null) {
            System.out.println("没有ID为："+bookId+" 的书籍！");
            return;
        }
        System.out.println("当前书名：" + book.getTitle());
        System.out.println("请输⼊新的书名：");
        String newTitle = scanner.nextLine(); // 输⼊新的书名
        System.out.println("当前作者：" + book.getAuthor());
        System.out.println("请输⼊新的作者：");
        String newAuthor = scanner.nextLine(); // 输⼊新的作者
        System.out.println("当前类别：" + book.getCategory());
        System.out.println("请输⼊新的类别：");
        String newCategory = scanner.nextLine(); // 输⼊新的类别
        //更新对应书籍的信息
        book.setTitle(newTitle);
        book.setAuthor(newAuthor);
        book.setCategory(newCategory);
        library.updateBook(book);
    }

    //删除书籍
    public void removeBook() {
        //1.展⽰⼀下所有的图书
        library.displayBooks();
        System.out.println("请输⼊要删除的图书的ID：");
        int bookId = scanner.nextInt();
        scanner.nextLine(); // 吞掉换⾏符

    //记录⼀下删除的图书对象
        Book removeBook =library.searchById(bookId);
    //开始删除
        library.removeBook(bookId);
        System.out.println("图书："+removeBook.getTitle()+" 已经被删除！");
    }


    //统计每本书的借阅次数
    public void borrowCount() {
        library.borrowCount();

    }

    //查询最受欢迎的前n本书
    public void generateBook() {
        System.out.println("请输⼊你要查看的最受欢迎的前K本书,注意k值不能超 过："+library.bookCount);
        int k = scanner.nextInt();
        if(k <= 0 || k > library.bookCount) {
            System.out.println("没有最受欢迎的前"+k+"本书！");
            return;
        }
        library.generateBook(k);

    }

    //查看库存状态
    public void checkInventoryStatus() {
        library.checkInventoryStatus();

    }

    //并移除上架超过⼀年的图书
    public void checkAndRemoveOldBooks() {
        library.checkAndRemoveOldBooks(scanner);

    }
    public void exit() {

    }
}
